Shuttle-brake.



no. 796,128. PATENTED AUG. 1, 1905;

. J. LAPORET.

SHUTTLE'BRAKE. APPLICATION TILED MAR. 9, 1905.

WITNESSES UNITED STATES PATENT oEEioE.

JEAN LAFoRET, OF EToILE. ERANcE, ASSIGNOR TO ALBERT B. STRANGE,

OF NEW YORK, N. Y. SHUTTLE-BRAKE.

Specification of Letters Patent.

Patented Aug. 1, 1905.

Application filed March 9, 1905. Serial No. 249,205.

To aZZ whom it may concern:

Be it known that I, JEAN LAEoRET, acitizen of the Republic of France, residing in'Etoile, Department de la Drome, France, have invented certain new and useful Improvements in Shuttle-Brakes; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to characters of reference marked thereon, which form a part of this specification.

This invention relates to shuttle-checks for looms; and it has reference particularly to that class of such devices wherein the binder or movable part of the box is a contrivance which comes to bear against the shuttle at two different points thereon as the shuttle is driven home.

One of the principal objects of the invention is to provide a shuttle-check which will act to bring the shuttle gradually to a stop as it enters the box and at the same time prevent the rebound thereof.

My invention will be found fully illustrated in the accompanying drawings, wherein in' two figures a loom shuttle-box is shown in horizontal section provided with my improved checking means in two different positions of the parts, the one, Fig. 1, where the shuttle is out of the box and the other, Fig. .2, where it is in the box.

[n the drawings, a is the lay or batten, Z a shuttle-box on one end thereof having front and rear walls 0 and 0Z, and e the picker-stick, which works in a slot f in the bottom of the box Z) and actuates the picker 9, all according to the usual construction.

In the back wall 0Z is formed an opening it, which is penetrated vertically by two pins Z and j, mounted in said back wall. These pins form the fulcrums for levers 70 and Z, constituting, respectively, the primary and secondary binders. Each lever is provided with a rectangular opening m, in which is fitted a square block or, which directly receives the pin Z, (or j,) forming a bearing for the lever.

' 0 1s a horizontal set-screw which secures the block 01. in place. Y

Lever is has its long arm toward the lay or batten, and on the side toward the wall 0 of the shuttle-box it has a long curved wearing-face p, with which the shuttle engages.

To limit the inward movement of this lever, it is formed with an extension 9, adapted to be received by a rabbet formed at r in the opening 72,. Lever Z also has its long arm toward the batten, and on the side thereof to ward the wall 0 of the shuttle-box itis curved, as at s, and is faced with leather t or some other such material as will have a good braking effect on the shuttle. the lever 70 overlaps the long arm of lever Z, and it carries a horizontal set-screw a, which bears againsta plate-spring '0, carried by lever Z. Thus when the long arm of lever 70 is pressed outwardly by the entering shuttle its short arm acts, through set-screw u and spring '0, to press inwardly the long arm of lever Z, and when the shuttle finally engages lever Z and presses it outwardly it reacts, through spring 1; and set-screw u, to press inwardly the long arm of lever in against the side of the shuttle, which is thus firmly held at two points against rebound. The successive operations of these two parts, furthermore, causes the shuttle to be brought to its stop gradually.

w is a plate-spring, which is secured to the back of lever Z by a screw y and bears at its other end against the back of lever Z9. Its

point of engagement with each of the two levers is on the long arm thereof, and it is held under tension by a screw 2, which penetrates it and is mounted in the lever Z and keeps the spring '0 on lever Z pressed against screw u. l is a stud on lever 70, penetrating a slot 2 in the spring and preventing it from diser said farther end of the batten than the secondary binder-lever, having its shuttle impact portion on the end thereof toward Said farther end of the batten and its other end overlapping the impact portion of the secondary lever on the outside of the latter, and a spring maintaining the overlapping portions of said levers in contact with each other, substantially as described.

The short arm ofv 2. In a loom, the combination of a shuttleboX and a shuttle-check comprising asecondary binder-lever having its shuttle impact portion on the side of its fulcrum adjacent the farther end of the batten, a primary binder-lever fulcrumed between its ends nearer said farther end of the batten than the secondary binder-lever, having its shuttle impact portion on the end thereof toward said farther end of the batten and its other end overlapping the impact portion of the secondary lever on the outside of the latter, and a spring carried by one of said levers and engaging the other and maintaining their overlapping portions in contact with each other, substantially as described.

3. In a loom, the combination of a shuttleboX and ashuttle-check comprising two levers fulcrumed therein the one between its ends and the other near one end, the latter having its free end engaged by the shorter arm of the other and being located adjacent the end of the shuttle-box and an elastic device interposed between said levers where they engage each other, substantially as described.

In testimony that I claim the foregoing 1 have hereunto set my hand this 20th day of February, 1905.

JEAN LAFoRE'r.

Witnesses:

JEAN GERMAIN, GUILLAUME Proonn. 

